Task states (Ready, Running, Blocked, Suspended) in FreeRTOS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set a task state to Ready.

FreeRTOS

eTaskState state = [1];

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AeRunning

BeReady

CeBlocked

DeSuspended

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing Running instead of Ready, which means the task is currently executing.

The eReady state means the task is ready to run but not currently running.

2fill in blank

medium

Complete the code to check if a task is currently Running.

FreeRTOS

if (eTaskGetState(taskHandle) == [1]) {
    // Task is running
}

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AeReady

BeBlocked

CeRunning

DeSuspended

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing Ready with Running state.

The eRunning state means the task is currently executing on the CPU.

3fill in blank

hard

Fix the error in the code to correctly set a task to Blocked state.

FreeRTOS

vTaskDelay([1]); // Delay causes task to enter Blocked state

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A100

BportMAX_DELAY

C0

D-1

Attempts:

3 left

💡 Hint

Common Mistakes

Using zero or negative values which do not block the task.

Using a positive delay value like 100 ticks causes the task to enter Blocked state for that time.

4fill in blank

hard

Fill both blanks to create a task and then suspend it.

FreeRTOS

xTaskCreate(taskFunction, "Task", 1000, NULL, 1, &taskHandle);
vTask[1](taskHandle); // Suspend the task
// Later
vTask[2](taskHandle); // Resume the task

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ASuspend

BResume

CDelete

DStart

Attempts:

3 left

💡 Hint

Common Mistakes

Using Delete instead of Suspend, which removes the task permanently.

vTaskSuspend() pauses the task, and vTaskResume() restarts it.

5fill in blank

hard

Fill all three blanks to create a dictionary of task states for given tasks.

FreeRTOS

eTaskState states[] = {
    [1],
    [2],
    [3]
};

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AeReady

BeRunning

CeBlocked

DeSuspended

Attempts:

3 left

💡 Hint

Common Mistakes

Repeating the same state multiple times.

This array holds three task states: Suspended, Running, and Blocked.